Smithsonian Institutions

Candy maker Mars Inc. is donating $5 million to the Smithsonian’s National Museum of American History to create a new gallery focused on business and innovation in the United States dating back to the 1700s, the museum announced Wednesday.

Dorothy’s ruby slippers from “The Wizard of Oz” have a new home with a diverse set of artifacts in a new timeline of American history that includes a piece of Plymouth Rock, a slave ship manifest, Alexander Graham Bell’s telephone and Kermit the Frog at the Smithsonian Institution.